Summary Hospital-level Mortality Indicator (SHMI), Deaths associated with hospitalisation, England, September 2021 - August 2022
Indicator reporting mortality at hospital trust level across the NHS. This indicator is produced on a monthly basis and gives an indication for each non-specialist acute hospital trust in England whether the observed number of deaths within 30 days of discharge from hospital was higher than expected, lower than expected or as expected when compared to the national baseline.
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The Summary Hospital-level Mortality Indicator (SHMI) reports on mortality at trust level across the NHS in England using a standard and transparent methodology. It is produced and published monthly as a National Statistic by NHS Digital.
The SHMI is the ratio between the actual number of patients who die following hospitalisation at the trust and the number that would be expected to die on the basis of average England figures, given the characteristics of the patients treated there.